Photoelectric integrated strong electric field measuring system
Title：
Photoelectric integrated strong electric field measuring system
Application Number：
 200610011962
Application Date：
 2006/05/23
Announcement Date：
 2006/10/11
Pub. Date：
Publication Number：
 1844941
Announcement Number：
Grant Date：
Granted Pub. Date：
ApplicationType：
 Invention
State/Country：
 11[China|beijing]
IPC：
 G01R 29/12
Applicant(s)：
 Tsinghua University
Inventor(s)：
 Zeng Rong, He Jinliang, Chen Weiyuan
Key Words：
 Photoelectric integrated, strong electric field, measuring system
Abstract：
 The invention relates to an optical electric integrated strong electric field tester, belonging to the high-voltage test technique. Wherein, said tester comprises: a laser source for generating a linearly-polarized light; a strong electric filed sensor for using polarized optical fiber to couple the linearly-polarized light into strong electric field sensor; an optical electric converter for converting the optical power signal modulated by the strong electric field sensor into voltage signal, which is connected to the strong electric field sensor with single-mode optical fiber; and an electric signal detector for detecting the voltage signal output by the optical electric converter, which is connected to the optical electric converter via radio frequency cable. The invention can be used to test the strong electric field (stronger than 100kV/m); the invention has few metallic elements to avoid affect tested electric field; it uses optical signal to communicate, to effectively avoid transmission disturb, to support the test in high-voltage section. The inventive strong electric field sensor has quick response speed, high sensitivity, and improved test frequency range.
Claim：
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